You can put as many <IdentityMap> or <IdentitySearch> elements as needed into the <Canonicalizations> section of the <LdapConfig> section of the TdgssUserConfigFile.xml. Name each service using the Id attribute. Link the individual <IdentityMap> or <IdentitySearch> elements back to the service using the service name (Id) in the canonicalization's Ref attribute.
For information on using the <LdapConfig> element in the TDGSS configuration, see Adding Identity Map and Identity Search Elements to the LdapConfig.